Taubman claims its U.S.-owned properties are the most productive in the publicly held U.S. regional mall industry. Image credit: Taubman Centers The COVID-19 outbreak and lockdown took another casualty in U.S. retail with the termination of mall owner Simon Property Group’s contract to buy rival Taubman Centers for $3.6 billion. But Taubman is set to vigorously contest that unilateral move.